Lessons
Math
Arithmetic and Fractions
- Properties of Real Numbers 5:40
- Positive and Negative Numbers - I 6:47
- Positive and Negative Numbers - II 9:14
- Intro to Decimals 7:55
- Multiples of 10 3:20
- Intro to Fractions 8:37
- Conversions with Fractions and Decimals 6:23
- Fraction Properties - I 5:55
- Operations with Fractions 8:13
- Fraction Properties - II 5:29
- Word Problems with Fractions 3:58
Percents and Ratios
- Intro to Percents 7:13
- Working with Percents 8:07
- Finding x percent of y 5:31
- Percent Increases and Decreases 11:02
- Simple and Compound Interest 7:11
- Intro to Ratios 8:14
- Combining Ratios 4:51
- Ratios and Rates 7:32
Powers and Roots
- Intro to Exponents 9:23
- Exponential Growth 2:56
- Exponent Laws - I 7:07
- Negative Exponents 5:20
- Exponent Laws - II 6:08
- Units Digit Questions 3:28
- Square Roots 6:25
- Other Roots 5:37
- Properties of Roots 2:51
- Simplifying Roots 6:16
- Operations with Roots 3:53
- Fractional Exponents 3:32
- Equations with Exponents 4:36
- Fixing the Denominator 6:39
Algebra, Equations, and Inequalities
- Intro to Algebra 5:25
- Simplifying Expressions 5:44
- Expanding Expressions 7:21
- FOIL Method 3:55
- Factoring - GCF 5:48
- Factoring - Difference of Squares 4:19
- Factoring - Quadratics 6:39
- Factoring - Combined 3:41
- Factoring - Rational Expressions 6:47
- Basic Equation Solving 5:05
- Eliminating Fractions 7:38
- Quadratic Equations 8:37
- Two Equations with Two Unknowns 9:36
- Number of Solutions 3:37
- Three Equations with Three Unknowns 2:26
- Equations with Square Roots 8:20
- Equations and Powers 3:02
- Absolute Value Equations 3:46
- Function Notation 5:01
- Strange Operators 2:22
- Working with Formulas 4:26
- Inequalities - I 8:41
- Inequalities - II 5:54
- Inequalities and Absolute Value 6:17
- Quadratic Inequalities 5:21
- The Something Method 1:42
Coordinate Geometry
- The Coordinate Plane 3:39
- Distance Between Two Points 3:30
- Graphing Lines 8:12
- Vertical and Horizontal Lines 2:54
- Slope 5:04
- Intercepts 2:57
- Slope y-intercept Form 2:59
- Writing Equations of Lines 3:29
- Graphs of Quadratics 1:23
Word Problems
- Intro to Word Problems 2:55
- Testing the Answer Choices 5:37
- Assigning Variables 9:22
- Writing Equations 8:17
- Number of Variables 5:33
- Age Questions 5:51
- Intro to Motion Questions 9:38
- Average Speed 6:15
- Multiple DRT Questions 9:29
- Shrinking and Expanding Gaps 3:31
- Work Questions 8:51
- Double Matrix Method 4:33
- Three Criteria Venn Diagrams 6:15
- Intro to Sequences 4:41
- Recursive Definitions 5:18
- Sums of Sequences 4:44
- Growth Tables 1:59
- Mixture Questions 5:39
- Variables in Answer Choices 7:19
- Tips for Algebraic Approach 4:08
- Tips for Input-Output Approach 7:02
Geometry
- Lines and Angles 7:19
- Triangles - Part I 5:55
- Geometry Strategies - Part I 1:07
- Triangles - Part II 8:16
- Right Triangles 9:18
- Special Right Triangles 6:42
- Similar Triangles 4:28
- Quadrilaterals 5:50
- Polygons 3:15
- Circles 4:47
- Pieces of Pi 3:37
- Circle Properties 3:36
- Volume and Surface Area 6:44
- Units of Measurement 1:54
- Geometry Strategies - Part II 1:54
Integer Properties
- Divisibility 6:12
- Divisibility Rules 7:03
- Prime Numbers 1:49
- Prime Factorization 7:45
- Counting Divisors of Large Numbers 5:08
- Squares of Integers 4:01
- Divisor Rules 5:26
- Greatest Common Divisor 6:13
- Least Common Multiple 5:00
- GCD LCM Formula 2:07
- Even and Odd Integers 9:09
- Testing Cases 5:44
- Consecutive Integers 4:59
- Remainders 6:45
- Integer Properties Strategies 4:00
Statistics
- Mean, Median, Mode 5:27
- Mean Equals Median 2:22
- Weighted Averages 8:00
- Range and Standard Deviation 10:10
- More Standard Deviation 3:01
- Normal Distribution 9:22
- Boxplots 6:55
Counting
- Listing and Counting 3:53
- Fundamental Counting Principle 4:48
- FCP Example - Seating Children 2:58
- Counting Strategies - I 0:56
- Factorial Notation 3:19
- Restrictions - JKLMN Example 4:47
- MISSISSIPPI Rule 3:55
- Combinations 4:25
- When to use Combinations 7:34
- Calculating Combinations 4:46
- Counting Strategies - II 1:54
Probability
- Intro to Probability 6:53
- Complementary Events 6:02
- Mutually Exclusive Events 3:21
- Probability of Event A OR Event B 4:54
- Applying the OR Rule - Egg Inspections 2:17
- Probability of Event A AND Event B 3:41
- Independent Events 7:12
- Determining Independence 4:01
- Rewriting Questions 8:19
- Listing vs Counting vs Probability Rules 8:38
- General Probability Strategies 2:11
- Guessing Strategies 5:46
Data Interpretation
- Intro to Data Interpretation 2:17
- Data Interpretation Strategy 4:24
- Venn Diagrams 3:18
- Scatter Plots 6:26
Quantitative Comparison
Verbal
Text Completion - Overview
- Intro to Text Completion 4:18
- Elimination Method 6:31
- Understanding the Sentence 4:33
- Difficult Words 9:38
- Simplifying Complex Sentences 6:24
- Testing the Answer Choices 4:30
Text Completion - No Shifts
Text Completion - Sentence Shifts
- Intro to Sentence Shifts 4:25
- More Reversers 2:10
- Double Shifts 3:29
- Time Shifts 4:39
- Shifts in Perception 2:47
- Multiple Shifts 4:28
- False Contrast 4:56
- Deviating from the Norm 5:29
- Reverse Apposition 2:10
Text Completion - Double Blanks
- Intro to Double Blank Sentences 7:05
- Multiple Sentences 4:20
- Relationship between Blanks 3:35
- Back to Back Blanks 3:24
- Other Blank is the Clue 5:06
Text Completion - Triple Blanks
- Intro to Triple Blank Sentences 4:59
- Long Triple Blank Sentences 5:10
- Beware of Counter Intuitive Choices 4:09
- One Sentence Triple Blank 6:27
- Carefully Consider Differences 6:04
- Multiple Word Answers 4:02
Sentence Equivalence
- Intro to Sentence Equivalence 3:05
- Synonymous Sentences - I 4:40
- Synonymous Sentences - II 4:47
- Read Carefully - I 2:55
- Read Carefully - II 2:39
- Difficult Words in Sentence Equivalence 4:15
Reading Comprehension
- Intro to Reading Comprehension 6:16
- Deconstructing Passages - I 5:10
- Deconstructing Passages - II 3:42
- Deconstructing Passages - III 6:11
- Wrong Answers - I 8:44
- Wrong Answers - II 4:33
- Difficult Passages - I 6:30
- Difficult Passages - II 5:35
- Difficult Passages - III 2:28
- Difficult Passages - IV 2:10
- Difficult Passages - V 2:59
Paragraph Argument
- Elements of the Argument 8:13
- Weakening the Argument 8:18
- Strengthening the Argument 5:55
- Negating the Assumption 8:25
- Evaluating the Argument 3:58
- Wrong Answer Choices 6:45
- The Paradox Argument 3:23
- Bold-faced Arguments 7:11
- Don’t Forget the Conclusion 5:40
- Eliminating All the Answers 4:51
- Numbers vs. Percents 3:05